baber/WOPTO huggingface dataset:
Patent GB-702746-A (GB)
Title: A new or improved fluid proportioner applicable, for example, to aircraft fuel systems
IPC: F02M37/00
Filed: 1950-10-05
Abstract: 702,746. Rotary pumps. SELF-PRIMING PUMP & ENGINEERING CO., Ltd., and McKEAN, J. A. Oct. 4, 1951 [Oct. 5, 1950], No. 24385/50. Class 110 (2). [Also in Group XXIX] A fluid proportioner comprises two or more sliding vane flow controlling devices which consist of a hollow stator 16, Fig. 2, having an internal curved surface, a rotor 30 within the stator and positioned relatively to the curved surface to leave a space having inlet and outlet ports 23, 24, respectively, the sliding vanes in the rotor being arranged to move fluid from the inlet to the outlet on rotation of the rotor, wherein the rotors are rotated in unison, the controlling devices are allocated respectively to the several fluids to be proportioned and have a ratio or ratios of throughput corresponding to, or adjustable to correspond to, the fluid proportions desired. As shown the proportioner comprises three devices controlling flow from three fuel tanks in an aircraft wing. The rotors 30 are mounted on a shaft 6 driven by an electric motor through a free wheel and driving a gear pump 71, Fig. 3. The inlet 13 of each device is connected to a respective tank and the outlets 14 are interconnected and lead to the engine pump: Each tank has a pump which supplies fuel to its respective inlet and should any pump fail, the rotor of that device will act as a pump. The stator 16 of each device is adjusted axially by nut 37 to cause flow in the desired proportions, the free wheel permitting the liquid to drive the rotors faster than the motor. A float 50 in each inlet controls a valve 55 having connections 75 to the outlet of pump 71, 76 to a bore 73 connected to all the inlets 13 via non-return valves and hence supplied by whichever inlet has the highest pressure, 77 to a chamber 45 above an annular bellows 40, and 79 to a chamber 67, Fig. 7. The bellows 40 which is open to atmosphere or tank pressure via bore 41 is connected to the stator 16 and contains a spring 44 urging the stator to cut off flow. Float 50, when raised, positions valve 55 to supply inlet pressure to the chamber 45 to collapse the bellows, but if the liquid level drops, e.g. due to emptying the tank, the float falls and' causes valve 55 to connect chamber 45 to exhaust whereby the bellows expand and raise the stator to prevent air being drawn through to the engine since the rotor will continue rotating by action of the other rotors. Each rotor has a by-pass 60 controlled by a valve 61 held closed by the pressure in the chamber 67 acting on a bellows 66. Should the rotors jam, pump 71 will stop and the pressure in chambers 67 will fall permitting valves 61 to open and pass fuel to the outlet. Each chamber 67 is connected to the pump outlet when the float is raised. When any float falls the bore 73 is connected to the appropriate chamber 67 and pressure is thus maintained to hold the valve 61 closed.
Patent GB-471635-A (GB)
Title: Improvements in plywood and blockwood sheets
IPC: B27D1/04
Filed: 1936-09-07
Abstract: 471,635. Laminated wood sheets. KROOK, B. Sept. 7, 1936, No. 24411. [Class 145 (ii)] A sheet of plywood or blockwood is cut into portions which are assembled edge to edge, and an undivided covering sheet is glued to each face of the assemblage. The resulting sheet, owing to the interruption of the fibres of the centre portion, is not liable to warping. The divided portions of the original sheet may be assembled in their original relative positions, or their grouping may be changed so that the directions of the fibres in corresponding layers make an angle with one another, preferably one of 90‹. The figure shows a sheet made by dividing a blockwood sheet into two pieces 11, 12, turning one portion through a right-angle, and covering them with facing sheets 14, 15.
Patent GB-245589-A (GB)
Abstract: 245,589. Mansel, R. S. Jan. 8, 1925. Closed solid-fuel stoves; cooking- ranges; feeding; grates; ash-pans; boilers, arrangement of; reflectors; sighting interior.-In a closed or open domestic fireplace, fuel is fed by means of a pusher device occupying the whole area of a conduit leading from a hopper and delivering the fuel to the incandescent zone of the fire; the inner end of the conduit being disposed above the fire-bars and below the upper surface of the fuel and forming a retort, the gases from which pass through the upper part of the burning fuel. In the kitchen range shown in Fig. 1, fuel is fed from a hopper 11 by a hand-operated plunger 12 arranged in a conduit 13 the inner end 14 of which forms a retort and delivers the fuel into the body of the fire at a point above the grate 15. Heat-insulating material 18 is interposed between the hopper :and the refractory front wall 17 of the fire space. A rear wall 23, which may be hollow for heating air and provided with fins or the like, separates the fire space from the boiler 22. The fire may be inspected through an opening in the top plate with a removable cover 20, or closed by mica or other transparent material. Additional air for combustion may be supplied through an opening controlled by a plug 21 or other form of valve. Figs. 3 and 4 show an open fireplace in which the fuel is fed to the rear of the fire from side hoppers 11 by pushers 12 through upwardly-inclined conduits 13 and a central retort portion 14. A V-shaped deflector 32 may be arranged in the retort 14 to distribute the fuel, and may be movable from the front of the stove to assist in the delivery of the fuel. The retort or parts adjacent to it may be provided with regulable - orifices for the admission of air. An air-heating chamber may be formed behind the back 29 of the firegrate, and forwardly, or forwardly and rearwardly, extending fins 34 may be provided on the back to transmit the heat. The front walls 36 of the fireplace may be of reflecting material. Fig. 6 shows the application of the invention to a basket form of grate, through the bottom of which the fuel-conduit 13 projects. The upper or retort portion 14 of the conduit is separate and renewable, and beneath it are air apertures 37 with. a regulating device 38. The fuel holder is rotatably mounted on ball-bearings, and may be raised or lowered relatively to the end of the conduit by means of annular racks 46. A curved reflector (not shown) may be provided behind the stove. A closed stove is also described having a similar arrangement of fuelhopper and conduit, the fuel being fed above the lower end of inclined fire-bars arranged over the hopper. The hopper is provided with a lid in the form of an ash-pan which may be removed from the hopper and attached beneath the firebars.
Patent GB-897951-A (GB)
Title: Supporting trough
Inventor: BUNSTON ROY F E
IPC: H02G3/04
Filed: 1960-07-15
Abstract: 897,951. Supporting pipes. BURNDY CORPORATION. July 15, 1960 [July 21, 1959], No. 24662/60. Class 99(2). [Also in Group XXXVI] A trough for cables or pipes comprises a pair of side rails 24 and a ribbed bottom tray 10, the latter having alternating ridges 12 and grooves 14 and the grooves being slotted 22. The lower edge of the side walls may be turned in to form a supporting lip 26 to which the tray 10 is spot welded at 40 and may be stiffened by ribs such as 30 and folding over the upper edge 32. Lengths of trough may be joined together by interlocking hinge-type jointing members 44 and 46 secured by pins 56. Instead of the tray 10 being continuous it may be formed by strips of metal of ridge and groove cross-section, spaced apart like the rungs of a ladder, Fig. 15 (not shown). Various arrangements for curves, cross-pieces and reducing are described and a cover may be provided. The trough may be supported by hangers, or by a cantilevered bracket with an upstanding lip which engages with one of the side walls of the trough, Fig. 5 (not shown). Cables may be secured to the bottom tray by pieces of wire or by clips engaging with the slots in the bottom tray.
Patent GB-1073047-A (GB)
Title: Method of producing tetracycline
IPC: C12P29/00
Filed: 1965-06-11
Abstract: Tetracycline is produced by cultivating a tetracycline- and chlortetracycline-producing strain of a species of Streptomyces in a conventional aqueous medium containing as chlorination inhibitor a 1,2,4-triazine of formula <FORM:1073047/C2/1> wherein X is hydrogen or C1- 6 alkyl; Z is hydrogen, C1- 6 alkyl, C1- 6 alkenyl, aryl, aralkyl, -CH=CH.C6H5, -(CH2)nCOOH or -(CH2)n CONH2 where n = 0 to 7; Y is H, C1- 6 alkyl, aryl, aralkyl, -OH, -SH or NH2. Specified compounds are 3-methylmercapto-5-hydroxy- 6 - benzyl - 1,2,4 - triazine, 3 - mercapto - 5 - hydroxy - 1,2,4 - triazine, 3 - mercapto - 5 - hydroxy - 6 - carboxy - 1,2,4 - triazine, 3 - mercapto - 5 - hydroxy - 6 - carboxamido - 1,2,4 - triazine, beta - (3 - mercapto- 5 - hydroxy - 1,2,4 - triazine - 6 -) propionic acid, 3 - mercapto - 5,6 - diphenyl - 1,2,4 - triazine, 3 - mercapto - 5 - hydroxy - 6 - methyl-1,2,4 - triazine and 3 - mercapto - 5 - hydroxy- 6 - benzyl - 1,2,4 - triazine. The cultivation may also take place in the presence of bromine ions.
Patent GB-873438-A (GB)
Title: Improvements in or relating to production of graphite
Inventor: AVES RUSSELL
IPC: C04B41/87
Filed: 1957-08-08
Abstract: The porosity of graphite is reduced by impregnating with a metal compound, e.g. zirconium tetraiodide, and heating the graphite in a vacuum or inert atmosphere, so as to decompose the compound and form a metal carbide.  A graphite vessel may be internally evacuated while surrounded by zirconium tetraiodide vapour.  The vessel may then be heated to 1300 DEG C. to form zirconium and then to 2000 DEG C. to form zirconium carbide.
Patent GB-622457-A (GB)
Title: Process for the prevention of damage by moisture to goods stored in cargo vessel holds and the like
IPC: B63J2/08
Filed: 1945-09-27
Abstract: 622,457. Ventilation systems. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. Sept. 27, 1945, No. 25043. Convention date, July 2, 1942. [Class 137] Damage by moisture to goods in a storeroom, e.g. a ship's hold, having a heat insulating inner wall and an outer wall spaced therefrom, is prevented by. maintaining a strong ventilation system in the storeroom and blowing air drier than that in the storeroom through the space between the inner and outer walls by another ventilation system, there being a communication between the storeroom and the surrounding space whereby the drier air can take up moisture from the storeroom air.
Patent GB-336353-A (GB)
Title: Improvements in or relating to cellulose ester compositions
IPC: C08J3/09
Filed: 1929-08-16
Abstract: 336,353. Kodak, Ltd., (Assignees of Webber, C. S., and Staud, C. J.). March 18, 1929, [Convention date]. Cellulose ester solutions, and processes for making films therefrom.-Mixed cellulose esters containing an acyl radical and a radical of an acid containing a hydroxy group in the alpha position or a ketonic group in the alpha or gamma position, and which are soluble in at least one of the solvents selected from acetone and its homologues or in a 50-75 per cent aqueous alcohol solution, are dissolved in a mixture of ethylene chloride and a mono hydroxy aliphatic alcohol containing one to five carbon atoms. A flowable solution for the manufacture of photographic films and other purposes is obtained by dissolving one part by weight of the mixed cellulose ester in four to eight parts by weight of the compound solvent. Suitable mixed cellulose esters are those described in Specifications 338,201 and 338,202.
Patent GB-986121-A (GB)
Title: Electric terminal connector
Inventor: MAXIMOFF PAUL ANDREW
IPC: H01R4/48
Filed: 1961-07-11
Abstract: 986,121. Binding posts. A. JUST, and M. R. JUST, [trading as MALCO MANUFACTURING CO.]. July 11, 1961, No. 25070/61. Heading H2E. A terminal connector for securing one or more electrical conductors to a base-board comprises a hollow body closed at one end and open at the other end for receiving the leads and several inwardly directed, gripping fingers integral with the body, the wall having several apertures therein. As shown in Fig. 7 the tubular body 20 has fingers 40 stamped out of its walls in the form of isosceles triangles with their apexes directed towards the inside of the body and their bases connected integrally to the portion 28 of the body by spring curls forming annular beads 42, which act as stops when the body 20 is inserted in a terminal base board. At the open end the body 20 is provided with tabs 34 which are bent over the base board 24, the beads 40 being held against the lower surface of the base board 24 thereby securing the terminal 20 rigidly to the base board. The bottom end of the terminal 20 is formed with tabs 38 which are bent over one another in opposite pairs. When leads 41 are inserted they are firmly gripped by the finger 40 and may be dip soldered thereto, the solder flowing through triangular cutouts 44 on the terminal wall. In a modification (Fig. 15) the gripping fingers 74 extend from the open end of the body 64 which is of square cross-section and are bent over to form the curls 76 which engage the upper surface of the board being held thereagainst by spring stop 78 stamped out of the body and engaging the lower surface of the base board. A hole in the body and also the cut-out portion complementary to the spring stop facilitates flow of solder during the soldering operation. Specifications 834,947 and 867,925 are referred to.
Patent GB-413892-A (GB)
Title: Improvements in or relating to bedsteads
IPC: A47C19/00
Filed: 1933-09-11
Abstract: 413,892. Bedsteads. SOC. ANON. DES ETABLISSEMENTS J. PERRENOUD ET CIE, Cernier, Switzerland. Sept. 11, 1933, No. 25104. Convention date, Sept. 12, 1932. [Class 52 (ii).] A double bed comprises two bedsteads of similar size mounted on a common supporting structure to be capable of lateral relative motion. The base comprises rails 1, 2, provided with grooves 11 and rollers 20 or other suitable guides to enable the bedsteads, 3, 5, to slide easily, the rails being fastened together by transverse bars 16, 17, 18, 19. The bedsteads 3, 5 are interconnected by cords 8 guided over rollers 9, 10 so that the two portions move simultaneously. Stops 7 limit the outward motion. In a modification, the head ends of the bedsteads may be pivoted together whilst the foot ends are movable transversely on curved guides.
Patent GB-885196-A (GB)
Title: Two-shoe internal expanding drum brake
IPC: B60T11/04
Filed: 1960-07-19
Abstract: 885,196. Internal shoe-drum brakes. GENERAL MOTORS CORPORATION. July 19, 1960 [Sept. 17, 1959], No. 25111/60. Class 103 (1). In an internal expanding drum brake having two shoes 3, 4, one end of each shoe bears against a separating member 5 and the other end against a common hollow anchor pin 11 secured to a support e.g. steering knuckle 24 by fastening means, such as a bolt 13, passing through the hollow portion, and an anchor plate, Fig. 5, 20 is supported on the anchor pin 11 and is connected to the shoe upper ends by springs 18 and 19. The anchor pin 11 is a force fit in a backing plate 1; the bolt 13 is locked by a washer 15 held by a tab 16 on actuating cylinder 17 which is secured by a tangentially extending flange 21 with a hole through which passes the anchor pin 11, and has a protuberance 23 extending through the backing plate 1 to prevent rotation. The separating member 5 comprises an adjustable strut against which the lower ends of the shoes 3, 4 are caused to bear by an interconnecting coil spring 6. In a modification, the actuating cylinder is mounted by means of a bolt on the backing plate independently of the anchor pin. An alternative method of securing the anchor pin to the backing plate by forcing a portion of the latter into an annular groove in the former is also described.
Patent GB-1106243-A (GB)
Title: Improvements in or relating to gas-lighters
IPC: F23Q2/52
Filed: 1965-06-15
Abstract: 1,106,243. Liquefied gas fuelled lighters. L. BOURDERAU. 15 June, 1965 [17 June, 1964; 9 June, 1965], No. 25151/65. Heading F4F. A gas lighter has a body 5 of metal or plastics material forming a reservoir R and a head T comprising a burner 14 and a flint 13 held in flint tube 4 and urged by a spring 12 against a friction wheel 1, the head when compressed against a spring 11, housed in an internal sleeve 5a of the body, releasing a supply of the gas. Screwed to the end of the flint tube is a member 7, having lugs 76 which are slidable in slots at the bottom end of the sleeve 5a, which member passes through a step 5c in the sleeve and has a duct 7c which in the inoperative position of the head is sealed against the inner face of the step. When the head is compressed the duct 7c communicates with the reservoir and gas passes through the flint tube 4 to the burner. Compressible filter material 9 may be squeezed between the member 7 and the bottom 4a of the tube 4 to vary the height of the flame. A seal 8 held by a ring 10 seals off the reservoir when the lighter is not in use. In a further embodiment, Fig. 2 (not shown), the gas passage from the reservoir comprises the bore 5c in the lower end of sleeve 5a, filter 9, a longitudinal bore 4a in the lower end of the flint tube 4, radial duets 4c and an annular passage 19 between the flint tube and a hollow extension 36 formed at the lower end of the head. When a seal 20, disposed between the ducts 4c and the entrance to the annular passage, is deformed by depression of the head T the gas circuit will be opened. A regulating needle 16 may reduce the section of bore 4a.
Patent GB-336715-A (GB)
Title: Pneumatic cushion wheel and method of making same
IPC: B60C15/02
Filed: 1929-08-17
Abstract: 336,715. Musselman, A. J. Aug. 17, 1929. Jackets and covers; tyre attachments to rims.-A " balloon-tyre " of relatively large tread diameter, and adapted to be fitted to a hub member is formed from one or more plies of fabric which are shaped from an original diameter shown in broken ing the edge portions on a cylindrical support, which may be the hub member. In the form shown in Fig. 3, the edges of the tyre casing 21, having the original diameter shown in broken lines, are contracted to fit the hub 27 by means of strings &c. 23 about which the edges are looped. The tyre is secured between fixed and removable hub flanges 28, 29. The tread portion having inextensible edge reinforcements 64<1> may be separately formed and vulcanized to the shaped casing. In the modification shown in Fig. 4, the edges are fitted with multiple retaining devices 23 and clamped between flanged rings 44, 45, the latter being spaced by rubber &c. rings 47.
Patent GB-885617-A (GB)
Title: Improvements relating to speed indicating apparatus
Inventor: MARTIN HENRY E
IPC: G01P3/48
Filed: 1960-07-20
Abstract: 885,617. Measuring angular velocity electrically. UNITED AIRCRAFT CORPORATION. July 20, 1960, No. 25328/60. Class 40 (1). A capacitor 28 is charged from a battery 20 through a meter 32, and discharged each time a permanent magnet 12 attached to the periphery of a rotating member 10 passes coil 14, producing a pulse which makes transistor 18 conductive. The average charging current, indicated by meter 32, is dependent on the frequency with which capacitor 28 is discharged, and is thus indicative of the angular velocity of the member 10.
Patent GB-1550920-A (GB)
Title: Shaft seals
IPC: F04D29/10
Filed: 1976-06-18
Abstract: The mechanical seal has a revolving slip ring made of carbon which is pressed against a fixed mating ring (2) made of metal by a spring. The sliding surface of the mating ring is provided with approximately straight ground grooves (5) with a peak-to-valley height of 0.1-0.8 mu m which extend in the same direction and at the same angle to the radial direction from the inner edge (3) to the outer edge (4) of the sliding surface and, as measured at the circumcircle, has a flatness deviation of less than 6  mu m. In operation, the ground grooves have the effect of pumping back leakage oil. The loss of oil through leaks when stationary is insignificant. The formation of the grooves as ground grooves makes the production process simple and economical. <IMAGE>
Patent GB-1432793-A (GB)
Title: Flat electric cables
IPC: H05K1/02
Filed: 1973-05-29
Abstract: 1432793 Flat cable; component assemblies WESTERN ELECTRIC CO Inc 29 May 1973 [1 June 1972] 25437/73 Headings H1A and H1R In a flat multi-pair cable 10, or alternatively in a printed circuit assembly 10, in which the conductive paths of each pair are transposed at crossover regions 17, at spaced intervals differing from pair to pair, in order to minimize crosstalk, the geometry of each crossover region is made such that each pair has substantially the same propagation velocity and characteristic impedance. Each crossover region occasions a relatively small change in the unit length inductance of a pair, but it contributes a more significant additional capacitance, proportional to the overlapping area of conductive paths, i.e. to the square of the path width dimension in that region. In a "pseudo-twist" arrangement, Fig. 1, the "twist length" intervals between crossover regions are successively halved from pair to pair, and the path widths d<SP>1</SP> at the crossovers, Fig. 3B, are reduced by successive division by #2. E.g. where for an 8 inch twist length the path width d is 0À050 inch, its associated pair of 4 inch twist length would have a crossover path width of d<SP>1</SP>=0À050/#2=0À035 inch. The conductive paths may be disposed on opposite faces of an insulating member 16, which may be composed of flexible or of inflexible material.
Patent GB-1400835-A (GB)
Title: Devices for opening eggs
IPC: A47G19/28
Filed: 1972-05-31
Abstract: 1400835 Egg opener RATHDOWN INDUSTRIES Ltd 29 Aug 1973 [31 May 1972] 25459/72 Heading A4D An egg topper comprises a plate 1 having an aperture therethrough 2, a cutting member 4 pivotally mounted thereon, and having two cutting edges 6, 7 either of which is movable across the aperture, a sharp point 8 being provided on that part of the cutting edge which initially meets the aperture periphery as the edge moves thereacross. The cutting member may be generally pear shaped, having a handle 5 at the narrow end, and the plate 1 may be bent to provide a handle 3. The topper may be made of stainless steel or plastics material.
Patent GB-1061605-A (GB)
Title: Improvements in or relating to cameras
Inventor: NOACK ROLF
IPC: G03B9/08
Filed: 1965-06-16
Abstract: 1,061,605. Photographic shutters. PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. June 16, 1965, No.25475/65. Heading G2A. A photographic focal plane shutter having opening and closing discs 4, 5 is shown cocked. Exposure is effected by moving a spring biased release 13 clockwise, thus allowing opening and closing springs 16, 17 to rotate opening and closing levers 9, 11 clockwise. A toothed segment arm 8 of the lever 9 drives the disc 4 counter-clockwise to uncover an image aperture 21. The clockwise movement of the closing lever- 11, and hence of the disc 5 which is pinion driven thereby, is retarded for a pre-determined time by mechanism 23-30. After an exposure has been effected, the shutter is re-set by rotating the arm 33 of the lever 9 counter-clockwise, a nose 14 thereon engaging a tab 15 on the lever 11 and rotating that lever also until the release 13 drops behind a catch tab 12 and prevents clockwise rotation of the levers 9, 11.
Patent GB-282918-A (GB)
Title: Improvements in or relating to hoisting apparatus
IPC: B66D1/14
Filed: 1926-10-13
Abstract: 282,918. Barclay, J. S. Oct. 13, 1926. Hand driving-mechanism.-A winding drum is driven by a shaft 8 through pawl- and-ratchet mechanism and the shaft 8 is driven either by a detachable handle 7 or by an electric motor. The handle 7 fits loosely on a reduced end of the shaft 8 and has formed on it a hollow boss 9 which receives a pin 10 on the drum.